WHAT MAKES AN EFFECTIVE AND SUCCESSFUL MARKETING LEADER? The 12 Powers of a Marketing Leader, by former McKinsey Partner Thomas Barta and senior London Business School professor Patrick Barwise, is the first research-based leadership book for marketers in the 21st century. Based on the largest ever research study of its kind, with detailed data on over 8,600 leaders in more than 170 countries, this game-changing book identifies...